Businesses often need someone to translate their documents or presentations from one language. Someone who is proficient in multiple languages can register with an translating freelancer site and choose which jobs they want to work on.
When organizations need have an online forum or social media presence they need someone to moderate it. When they don’t have internal staff to do this, they outsource it to moderators firms. These firms then hire freelancers or part-time/full time employees as moderators to manage the forums/social media for their clients.
Online research companies are contacted by businesses who need research into different areas. As an online research assistant for these sites, can make a good money answering these questions.
Another one of the online side hustles for college students is to drive for UberEats. You pickup up food from local restaurants and deliver it to people at their homes for a fee.
Design marketplaces allow you to make money online by selling your graphic designs directly to clients or enter in contests to compete for projects for money and to increase their client base.